The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-167-1644, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-167-1644 |
| Primary Part Number | 105377 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Brush Spring Adjustability | NONADJUSTABLE |
| Mounting Facility Quantity | 2 |
| Inside Width | 0.283 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| Inside Length | 0.628 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN |
| Overall Thickness | 0.781 INCHES NOMINAL IN |
| Brush Quantity Accommodated Per Holder | 1 |
| Brush Pressure Spring Type Accommodated | SPIRAL TORSION |
| Mounting Facility | THREADED HOLES |
| Inside Thickness | 0.625 INCHES NOMINAL IN |
| Material | ALUMINUM BOX |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 105377 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
NSN 5977-00-167-1644 is a Holder,electrical Contact Brush, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-167-1644 has 1 manufacturer part number on file: 105377 (Honeywell Intl Inc Defense Avionics Systems).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-203-9784, 4820-01-662-7232. Verify interchangeability with system specifications before substitution.
Key specifications for 105377: Brush Spring Adjustability: NONADJUSTABLE; Mounting Facility Quantity: 2; Inside Width: 0.283 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN; Inside Length: 0.628 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.